:root{--bg:#0b1018;--panel:#121b27;--line:#263446;--muted:#91a1b5;--text:#edf4fb;--mint:#69e0bd}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px Inter,Segoe UI,Arial,sans-serif}header{height:70px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;background:#0e1621}.brand{display:flex;gap:11px;align-items:center}.brandmark{width:37px;height:37px;border-radius:11px;background:var(--mint);color:#092019;display:grid;place-items:center;font-weight:900;font-size:21px}.brand b{display:block;letter-spacing:1.5px;font-size:13px}.brand small{display:block;color:var(--muted);font-size:9px;letter-spacing:2px;margin-top:3px}.header-right{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--mint)}.output-link{margin-left:15px;color:var(--mint);text-decoration:none}main{display:grid;grid-template-columns:245px 1fr;min-height:calc(100vh - 70px)}.sidebar{border-right:1px solid var(--line);padding:22px 15px;display:flex;flex-direction:column}.side-title,.toolbar,.side-title span{display:flex;align-items:center;justify-content:space-between}.side-title{font-size:11px;letter-spacing:1.5px;color:var(--muted);padding:0 5px 15px}.plus{background:#1c2b38;border:1px solid #365064;color:var(--mint);border-radius:8px;width:29px;height:29px;font-size:20px;cursor:pointer}.scene-list{display:grid;gap:9px}.scene{border:1px solid var(--line);border-radius:10px;padding:13px;background:#111a25;cursor:pointer}.scene.active{border-color:var(--mint);background:#142720}.scene strong{display:block;font-size:13px}.scene small{color:var(--muted);font-size:11px}.side-note{margin-top:auto;padding:13px;background:#111a25;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:11px;line-height:1.6}.side-note code,code{color:#9cebd5}.workspace{padding:25px 30px;max-width:1500px;width:100%;margin:0 auto}.toolbar{margin-bottom:18px}.eyebrow{font-size:10px;letter-spacing:1.5px;color:var(--muted)}h1{font-size:22px;margin:5px 0 0}.toolbar-actions{display:flex;gap:8px}.btn{border:1px solid var(--line);border-radius:8px;padding:10px 14px;color:var(--text);background:#182433;cursor:pointer;font-weight:600}.btn.primary{background:var(--mint);border-color:var(--mint);color:#092019}.btn.danger{color:#ff9b9b}.btn.subtle{background:#141f2c}.preview-wrap{background:#080c12;border:1px solid var(--line);padding:12px;border-radius:13px}.preview{aspect-ratio:16/9;position:relative;overflow:hidden;background:linear-gradient(135deg,#172b3b,#0d131c 65%);display:flex;align-items:center;justify-content:center}.preview-camera{width:100%;height:100%;display:grid;place-items:center;color:#73869a;font-size:12px;letter-spacing:1.5px;background:radial-gradient(ellipse at center,#22384a,#101722 70%)}.preview-overlay{position:absolute;inset:0;pointer-events:none}.preview-label{position:absolute;top:12px;right:14px;font-size:9px;letter-spacing:1.5px;color:#8394a6}.mock-card{position:absolute;max-width:70%;padding:16px 22px;background:#09111de0;border-left:5px solid var(--accent);color:white}.mock-card h2{margin:0;font-size:clamp(13px,2.4vw,30px)}.mock-card p{margin:6px 0 0;color:#cfdae5;font-size:clamp(10px,1.2vw,17px)}.mock-card img{max-width:90px;max-height:45px;display:block;margin-bottom:7px}.mock-card.bottom-left{left:4%;bottom:8%}.mock-card.bottom-center{left:50%;bottom:8%;transform:translateX(-50%);text-align:center;border-left:0;border-bottom:4px solid var(--accent)}.mock-card.top-left{left:4%;top:8%}.mock-card.top-right{right:4%;top:8%;border-left:0;border-right:5px solid var(--accent);text-align:right}.editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:16px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}.panel-heading{font-size:10px;letter-spacing:1.4px;color:var(--muted);margin-bottom:17px}.field{display:grid;gap:7px;margin-bottom:13px}.field label{font-size:11px;color:#b6c4d2}.field input:not([type=color]):not([type=range]),select{width:100%;background:#0c141e;border:1px solid #2a3a4c;border-radius:7px;padding:10px;color:var(--text);outline:none}.field input[type=color]{width:50px;height:30px;border:0;background:none}.field input[type=range]{width:100%;accent-color:var(--mint)}.button-row{display:flex;gap:8px;margin-top:16px}.step{display:flex;gap:11px;margin:14px 0}.step i{font-style:normal;background:#203b39;color:var(--mint);border-radius:8px;width:25px;height:25px;flex:none;display:grid;place-items:center;font-weight:bold}.step b{font-size:12px}.step p{margin:4px 0 0;color:var(--muted);font-size:11px;line-height:1.5}.notice{margin-top:15px;padding:11px;border-radius:8px;background:#1d2b27;color:#b9d9cf;font-size:11px;line-height:1.5}@media(max-width:850px){main{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--line)}.scene-list{grid-template-columns:repeat(3,1fr)}.side-note{margin-top:15px}.workspace{padding:18px}.editor-grid{grid-template-columns:1fr}}@media(max-width:520px){header{padding:0 13px}.header-right span:not(.status-dot){display:none}.scene-list{grid-template-columns:1fr 1fr}.toolbar{align-items:flex-start;gap:10px}.toolbar-actions{flex-wrap:wrap;justify-content:flex-end}.workspace{padding:13px}}